summaryrefslogtreecommitdiffstats
path: root/arch/x86/include
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2013-02-20 11:26:21 +0100
committerIngo Molnar <mingo@kernel.org>2013-02-20 11:26:21 +0100
commitff1fb5f6b4925a536ffb8171e5f2dbd01ccfeb97 (patch)
treea88ff0074d2ff11fa71e653c2e74d6a47440975e /arch/x86/include
parentperf/x86: Add Intel IvyBridge event scheduling constraints (diff)
parentftrace: Call ftrace cleanup module notifier after all other notifiers (diff)
downloadlinux-ff1fb5f6b4925a536ffb8171e5f2dbd01ccfeb97.tar.xz
linux-ff1fb5f6b4925a536ffb8171e5f2dbd01ccfeb97.zip
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent
Pull two fixes from Steven Rostedt. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/ftrace.h24
-rw-r--r--arch/x86/include/asm/thread_info.h1
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 86cb51e1ca96..0525a8bdf65d 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -72,4 +72,28 @@ int ftrace_int3_handler(struct pt_regs *regs);
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_FUNCTION_TRACER */
+
+#if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
+
+#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
+#include <asm/compat.h>
+
+/*
+ * Because ia32 syscalls do not map to x86_64 syscall numbers
+ * this screws up the trace output when tracing a ia32 task.
+ * Instead of reporting bogus syscalls, just do not trace them.
+ *
+ * If the user realy wants these, then they should use the
+ * raw syscall tracepoints with filtering.
+ */
+#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+ if (is_compat_task())
+ return true;
+ return false;
+}
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */
+#endif /* !__ASSEMBLY__ && !COMPILE_OFFSETS */
+
#endif /* _ASM_X86_FTRACE_H */
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 2d946e63ee82..2cd056e3ada3 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -20,7 +20,6 @@
struct task_struct;
struct exec_domain;
#include <asm/processor.h>
-#include <asm/ftrace.h>
#include <linux/atomic.h>
struct thread_info {